MIS 310 can you plz break it down for me and what should been the correct answers?

different question same charts

\begin{tabular}{|l|l|l|} \hline \multicolumn{3}{|c|}{ FUGHTS } \\ \hline PK & flightRoute & char(10) \\ \hline & fromAirporttoAirportstopoverAirporttotalflightMiles & char(3)char(3)char(3) \\ \hline \end{tabular} Assuming all tables have been created along with their primary keys, but no foreige keys Which of the following SQL conectly crestes the foreign key(s) in tabbo PUANE INVENTORY? SelectedAnswers AZTER TABLE AIRPLANES ADD CONSTRAINI EKI FOREIGN KEY (manutacturer, model, variant) REFERENCES [PLANE INVENTORY] (manufacturer, model, variant) Assuming alle tables have beon created aliong with their primary keys, but no foreign keys Which of the following SQl, correctly creates the foreign key(s) in table FLIGHT SCHEDULE